PSYCH 2300 Chapter Notes - Chapter 3: Internal Validity, Type I And Type Ii Errors, Statistical Significance
19 Aug 2016
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Three claims, four validities: interrogation tools for consumers of research. An attribute that varies, having at least two levels or values: levels. One of the possible variations, or values, of a variable: constant. An attribute that could potentially vary but that has only one level in the study in question: measured and manipulated variables. A variable in an experiment whose levels are observed and recorded. A variable in an experiment that a researcher controls. D. 4: from conceptual variable to operational definition. A variable of interest, stated at an abstract, or conversational, level. A variable of interest, stated at an abstract level, usually defined as part of a formal statement of a psychological theory. A researcher"s definition of a variable at the theoretical level. The specific way in which a concept of interest is measured or manipulated as a variable in a study.
